[mapserver-users] URL configuration Style Symbol not changing

[Martin Over]

Hi, according to the migration guide this schould work:
...[lakes].class[0].style[0]=SYMBOL+crosshatch+COLOR+151+51+151+SIZE+15&...
Every other Parameter works fine, but the SYMBOL is ignored und the default 
SYMBOL is rendered.
The is nothing in the logs, DEBUG Level 5.
Is there a special validation required?

Best regards,

Martin


___
mapserver-users mailing list
mapserver-users@lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/mapserver-users

Re: [mapserver-users] Mapserver 6.4 does not draw dense line segments at lower zoom levels. Why?

[Ei Fujioka]

Thanks, Steve, so much for a quick insight!

Yes, the simpler STYLE was the key to fix the problem. In particular, I think, 
as you indicated, the unnecessary SYMBOL was the culprit. I didn't need it as 
the line was just a solid line. And I had to change SIZE 2 to WIDTH 1.5 (WIDTH 
2 was a little bit thicker than I preferred).

Now the lines draw quick at any zoom levels!

Thanks again!

Ei

On 3/2/2020 7:26 PM, Steve Lime wrote:
Hi! My guess is your v.5 style is being interpreted differently in v.6. For 
example, what’s the purpose of the ANGLE 360? There were some big changes 
between versions 5 and 6. For example you don’t have to use a circular brush to 
draw a thick line. You should be able to do something much simpler like:

  STYLE
COLOR 0 0 255
WIDTH 2
  END

—Steve


On Mon, Mar 2, 2020 at 4:48 PM Ei Fujioka 
mailto:efuji...@duke.edu>> wrote:
Hello all,

I'm upgrading a web site that I have been developing for many years. The
web site uses Mapserver & Mapscript along with PHP. Mapserver layers are
drawn on top of Google Maps using Javascript.

What I'm struggling to figure out is that a line layer is not drawn at
lower zoom levels with Mapserver & Mapscript 6.4 and PHP 5.4.16. When
zooming in, the lines will start getting drawn but still not fully.

The same layer was drawn at any zoom levels without any problem under
Mapserver 5.2 and PHP 5.2.6.

Are there any mapfile settings (new to Mapserver 6.4 or changed from
Mapserver 5.2) that limit the number of line segments to be drawn at
unit cell or affects how the lines are drawn at differently zoom levels?
Are there any limits in Mapscript/PHP regarding data size to fetch or
draw? The line data of the layer is stored in a PostgreSQL table which
has a lot of records (~270,000 line segments). If the line layer does
not have such a large number of records (e.g. ~10,000), it draws fine.

Please take a look at an image (screenshots) that shows how the lines
are drawn differently between Mapserver 5.2 and Mapserver 6.4:
http://seamap.env.duke.edu/images/mapserver6_4_not_draw_lines.png

The new web site is not publicly available yet, so I can't let you
explore but the existing web site that draws the example line layer fine
can be accessed at
http://seamap.env.duke.edu/dataset/2001
# Please turn on "Survey tracks" in the Layer selection.


The snippet of the mapfile is below.
Thanks for your help in advance!

Ei Fujioka
Duke University


=== Mapfile ===
MAP
   EXTENT -20001364 -15000982 20001253 15000982
   IMAGETYPE "PNG"
   NAME "OBIS-SEAMAP_OGC_SERVICES"
   SIZE 256 256
   STATUS ON
   TRANSPARENT TRUE
   UNITS METERS

   OUTPUTFORMAT
 NAME "PNG"
 MIMETYPE "image/png"
 DRIVER "AGG/PNG"
 EXTENSION "png"
 IMAGEMODE RGBA
 TRANSPARENT TRUE
   END # OUTPUTFORMAT

   PROJECTION
 "init=epsg:3857"
   END # PROJECTION

SYMBOL
   NAME "solid_line"
   TYPE ELLIPSE
   POINTS
 1 1
   END
 FILLED true
END

   WEB
 IMAGEPATH "/var/www/tmp/"
 IMAGEURL "/tmp/"
 METADATA
   "wms_srs""EPSG:3857 EPSG:4326"
   "ows_enable_request""*"
   "wms_title""Online Mapper"
 END # METADATA
   END # WEB

   LAYER
 CLASSITEM "classitem_dataset"
 CONNECTION "user=xxx password=xxx dbname=xxx host=xxx"
 CONNECTIONTYPE POSTGIS
 DATA "geom from (SELECT ..., as classitem_dataset, 'solid_line' as
symbol FROM z_tracks WHERE ...) AS foo USING UNIQUE oid USING SRID=4326"
 METADATA
   "wms_legend_graphic""true"
   "gml_featureid""oid"
   "title""Survey tracklines"
   "gml_include_items""all"
   "wms_title""Survey tracklines"
 END # METADATA
 NAME "survey_tracks"
 PROJECTION
   "init=epsg:4326"
 END # PROJECTION
 STATUS OFF
 TILEITEM "location"
 TOLERANCE 1
 TYPE LINE
 UNITS METERS
 CLASS
   NAME "class_0"
   EXPRESSION "0_ON"
   STYLE
 ANGLE 360
 COLOR 255 0 0
 OUTLINECOLOR 255 0 0
 SIZE 2
 SYMBOL [symbol]
   END # STYLE
 END # CLASS

 # In total 60 CLASS ... END are defined
   END # LAYER


--

   Ei Fujioka
   Research Scientist
   Nicholas School
   Duke University

   (919) 684-3518
   efuji...@duke.edu


___
mapserver-users mailing list
mapserver-users@lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/mapserver-users


--

  Ei Fujioka
  Research Scientist
  Nicholas School
  Duke University

  (919) 684-3518
  efuji...@duke.edu



___
mapserver-users mailing list
mapserver-users@lists.osgeo.org